In enzymology, a geraniol dehydrogenase () is an enzyme that catalyzes the chemical reaction

The two substrates of this enzyme are geraniol and oxidised nicotinamide adenine dinucleotide phosphate (NADP+). Its products are geranial, reduced NADPH, and a proton.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is geraniol:NADP+ oxidoreductase.

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